西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (6): 21-23.DOI: 10.3863/j.issn.1000-2634.2004.06.006

• 石油与天然气工程 • 上一篇    下一篇

川西致密砂岩气藏数值模拟研究

罗洪涛1 马丽梅1 熊燕莉2 杜志敏3 周承民4

  

  1. 1.中国石化西南分公司勘探开发研究院,四川成都610081;2.中国石油西南油气田分公司勘探开发研究院; 3.西南石油学院; 4.胜利油田胜利采油厂
  • 收稿日期:2003-12-29 修回日期:1900-01-01 出版日期:2004-12-20 发布日期:2004-12-20
  • 通讯作者: 罗洪涛

NUMERICAL SIMULATION STUDY FOR THE TIGHT SANDSTONE GAS RESERVOIR IN WEST SICHUAN

LUO Hong-tao MA Li-mei XIONG Yan-li et al   

  1. Research Institute of Exploration and Development, Southwest Branch of SINOPEC, Chengdu Sichuan,610081
  • Received:2003-12-29 Revised:1900-01-01 Online:2004-12-20 Published:2004-12-20
  • Contact: LUO Hong-tao

摘要: 川西致密砂岩气藏压裂井的生产历史拟合是一个难题。因为储层的孔渗性很差,生产过程中裂缝闭合、水敏效应等因素引发储层的渗透性能随地层压力降低的动态变化不能忽略,而常规数值模拟理论基础是假定储层孔渗性为静态模型,导致常常不能合理有效的拟合。在分析川西某致密砂岩气藏的实际生产数据的基础上,利用数值模拟技术,研究了储层在生产过程中渗透性的改变规律和描述方法,较好的完成了历史拟合和方案预测。
    

关键词: 致密砂岩, 数值模拟, 历史拟合, 方案

Abstract: The production history simulation for artificially fractured wells in the tight sandstone gas reservoir in west Sichuan is a difficult problem. Since the porosity and permeability of the formation is very low, the dynamic change of formation’s permeability along with the decrease of formation pressure cannot be neglected which is caused by many factors such as fracture
close, water sensitivity effect and so on. But generally the porosity and permeability of the formation is supposed constant in theoretical basis of numerical simulation. Therefore, reasonable and effective simulation cannot often be attained. On the basis of analysis the practical production data in a tight sandstone gas reservoir in west Sichuan, formation permeability’s
change rules and description methods in production process have been studied using advanced numerical simulation technology and then history simulation and plan prediction can be finished well.

Key words: tight sandstone, numerical simulation, history simulation, plan

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